The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 23, 2016
Filed:
May. 28, 2014
Applicant:
Trumpf Werkzeugmaschinen Gmbh + Co. KG, Ditzingen, DE;
Inventors:
Assignee:
TRUMPF Werkzeugmaschinen GmbH + Co. KG, Ditzingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 25/72 (2006.01); G01K 9/00 (2006.01); B23K 26/03 (2006.01); B23K 26/32 (2014.01); B23K 31/12 (2006.01);
U.S. Cl.
CPC ...
G01N 25/72 (2013.01); B23K 26/032 (2013.01); B23K 26/034 (2013.01); B23K 26/32 (2013.01); B23K 26/322 (2013.01); B23K 26/3206 (2013.01); B23K 26/3293 (2013.01); B23K 31/12 (2013.01); B23K 2201/34 (2013.01); B23K 2203/04 (2013.01); B23K 2203/50 (2015.10);
Abstract
A method for detecting defect in a weld seam during laser welding. The method includes performing a two-dimensionally locally resolved detection of radiation that is emitted by a solidified molten mass that is adjacent to a liquid melting bath. The method also includes determining at least one characteristic value for heat dissipation in the solidified molten mass by evaluating the detected radiation along at least one profile-section of the solidified molten mass, and detecting a defect in the weld seam by comparing the at least one characteristic value with at least one reference value.